화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.19, No.8, 809-814, August, 2011
DOI10.1007/s13233-011-0801-4  Export Citation
Functionalized Graphene Sheet/Polyurethane Nanocomposites: Effect of Particle Size on Physical Properties
Jin Taek Choi, Dong Hoon Kim, Kwang Sun Ryu, Hyung-il Lee, Han Mo Jeong†, Cheol Min Shin1, Jung Ho Kim1, and Byung Kyu Kim2
  • Department of Chemistry, and Energy Harvest-Storage Research Center, University of Ulsan, Ulsan, 680-749, Korea
  • 1Research Center, N-Baro Tech Co., Ulsan, 689-871, Korea
  • 2Department of Polymer Science and Engineering, Pusan National University, Busan, 609-735, Korea
E-mail:
Nanocomposites of thermoplastic polyurethane (TPU), which were prepared using two types of functionalized graphene sheets (FGS) of similar thickness but different sizes were examined. The percolation threshold of the nanocomposite was reduced, evidently by increasing the particle size of the FGS. This means that the FGS with a mean particle size of 8.3 μm had a percolation threshold at 0.39 wt% in the nanocomposite of TPU, whereas it was 1.41 wt% when the FGS size was 2.4 μm. The FGS enhanced the modulus of TPU through a reinforcing effect but both the tensile strength and elongation at break were reduced as the FGS content was increased. These effects of FGS on the tensile properties were more evident with a larger particle size of FGS. The morphology and thermal properties of the nanocomposites were also examined.
Keywords:graphene;nanocomposite;polyurethane;conductivity.
  1. Rao CNR, Biswas K, Subrahmanyam KS, Govindaraj A, J. Mater. Chem., 19, 2457 (2009)
  2. Park S, Ruoff RS, Nat. Nanotechnol., 4(4), 217 (2009)
  3. Novoselov KS, Geim AK, Morozov SV, Jiang D, Zhang Y, Dubonou SV, Grigorieva IV, Firsov AA, Science, 306, 666 (2004)
  4. Schniepp HC, Li JL, McAllister MJ, Sai H, Herrera-Alonso M, Adamson DH, Prud'homme RK, Car R, Saville DA, Aksay IA, J. Phys. Chem. B, 110(17), 8535 (2006)
  5. Kim H, Macosko CW, Macromolecules, 41(9), 3317 (2008)
  6. Ramanathan T, Abdala AA, Stankovich S, Dikin DA, Herrera-Alonso M, Piner RD, Adamson DH, Schniepp HC, Chen X, Ruoff RS, Nguyen ST, Aksay IA, Prud'homme RK, Brinson LC, Nat. Nanotechnol., 3(6), 327 (2008)
  7. Verdejo R, Barroso-Bujans F, Rodriguez-Perez MA, de Saja JA, Lopez-Manchado MA, J. Mater. Chem., 18, 2221 (2008)
  8. Raghu AV, Lee YR, Jeong HM, Shin CM, Macromol. Chem. Phys., 209, 2487 (2008)
  9. Zhnag WL, Park BJ, Choi HJ, Chem. Commun., 46, 5596 (2010)
  10. Kim SC, Lee HI, Jeong HM, Kim BK, Kim JH, Shin CM, Macromol. Res., 18(11), 1125 (2010)
  11. Ha H, Kim SC, Ha K, Macromol. Res., 18(7), 660 (2010)
  12. Lee BS, Yu WR, Macromol. Res., 18(2), 162 (2010)
  13. Steurer P, Wissert R, Thomann R, Mulhaupt R, Macromol. Rapid Commun., 30(4-5), 316 (2009)
  14. Kim H, Macosko CW, Polymer, 50(15), 3797 (2009)
  15. Nguyen DA, Lee YR, Raghu AV, Jeong HM, Shin CM, Kim BK, Polym. Int., 58, 412 (2009)
  16. Lee YR, Raghu AV, Jeong HM, Kim BK, Macromol. Chem. Phys., 210, 1247 (2009)
  17. Jang JY, Jeong HM, Kim BK, Macromol. Res., 17(8), 626 (2009)
  18. Jeong HK, Lee YP, Lahaye RJWE, Park MH, An KH, Kim IJ, Yang CW, Park CY, Ruoff RS, Lee YH, J. Am. Chem. Soc., 130(4), 1362 (2008)
  19. Li J, Kim JK, Compos. Sci. Technol., 67, 2114 (2007)
  20. Martin CA, Sandler JKW, Shaffer MSP, Schwarz MK, Bauhofer W, Schulte K, Windle AH, Compos. Sci. Technol., 64, 2309 (2004)
  21. Yuen SM, Ma CCM, Wu HH, Kuan HC, Chen WJ, Liao SH, Hsu CW, Wu HL, J. Appl. Polym. Sci., 103(2), 1272 (2007)
  22. Tang WM, Macknight WJ, Hsu SL, Macromolecules, 28(12), 4284 (1995)